Gage-cock



(No Model.)

F. A. HUETT.

GAGE COCK.

No. 597,906. Patented Jan. 25, 1898.

Attorney UNITED STATES PATENT FREDEBIO A. HUETT, OF DETROIT, MICHIGAN.

GAGE-COCK.

SPECIFICATION forming part of Letters Patent No. 597,906, dated January25, 1898. Application filed July 3 0, 1897. gerial No. 646,468, (Nomodel.)

To (ZZZ whom it nmy concern.-

Be it known that I, FREDERIO A. HUETT, a citizen of the United States,residing at Detroit, in the county of Wayne and State of Michigan, haveinvented certain new and useful Improvements in Gage-Cocks for Steam-Boilers; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, forming a part of thisspecification.

This invention relates to gage-cooks for steam-boilers, and has for itsobject to provide certain new and useful improvements whereby the fullpressure of steam from the boiler upon which the gage-cock is secured isbrought to bear upon the valve to hold it into close engagement with itsseat and thus cause the wearing parts to grind to a perfect surface asthe valve is operated.

The invention consists in the construction and arrangement of the partsto be hereinafter described and claimed.

Referring to the accompanying drawings, Figure l is a perspective viewwith the cap removed, showing the interior of the hollow valve-head.Fig. 2 is a sectional elevation of the parts assembled.

Like letters of reference refer to corresponding parts throughout thefigures.

A indicates the main body or holding-block, which is cored out to form asteam passageway therethrough. At one end this block is externallythreaded to engage the boiler and at the opposite end provided with theinternal thread a.

D is a valve seat formed integral with swivel-pin C and in a plane atright angles to the axis thereof. One end of this pin is threaded toengage the internal threads in the outer end of the block A and isadapted to be turned down snugly to a shoulder at d, fixing the parts Aand O with relation to each other.

E is a hollow valve-head within which the valve-seat and swivel-pin arereceived, and through the central point of the end b,which forms thevalve-face, there is an opening an ranged to journal freely upon theshank g of the swivel-pin. The opposite end of the head is closed bymeans of the screw-cap G, which is concaved upon the under side to formwith the hollow head thesteam-chamber J. The swivel-pin O is also coredat b to form a continuous steam passage-way from the boiler to thechamber J, and as the steam accumulates therein its force is exertedwithin the hollow valve-head to bring the valve-face m and its seat '21into steam-tight engagement, so that as the handle E is actuated torotate the valve the engaging faces are constantly being ground to aperfect fit with each other.

The outlet-ports r s are provided in the stationary'seat D and rotaryvalve E and are so located as to register with each other at one pointin the circumference of the said valve. Thus it will be seen that toclose the valve the port 1- is turned away from the port 8, compellingthe steam in order to escape to pass between the ground faces of thevalve and its seat against the pressure of steam within the chamber .I.A spring L may be provided, if desired, to automatically return thevalve to a closed condition after it has been opened. The-one I haveshown consists of a coil with one end engaged to the body A and theother end secured to the lever.

It will be obvious to those familiar with the art that som e slightchanges and modifications may be made in the specific construct-ion andarrangement of the various parts herein shown and described withoutmaterially affecting the results, and I desire to have it understoodthat although I have preferred to illustrate my invention in theparticular. form shown I do not limit myself thereto.

Having thus described myinvention, what I claim is-- 1. In a gage-cockfor steam-boilers, the combination of a main body having a steam-passagetherethrough, a hollow valve-head provided with a steam-port swiveledupon said body, and a valve-seat having a port adapted to register withthe port in said hollow valve head, and a steam-passage arranged toadmit steam into said hollow head whereby the valve-face and valveseatare held together in a steam-tight contact, substantially as described.

2. In a gage-cock for stea1n-boilers, the combination of a main bodyhaving a steam-passage therethrough, a hollow valve-head hav ing ahandle formed integral therewith, said head provided with a steam-portand swiveled upon said body, a swivel-pin having a valveseat formedintegral therewith, and received within said hollow head and adapted toform a journal upon which said valve turns, said valve -head and valve-seat being provided with ports to register with each other at one pointin the circumference of said valve, said I0 swivel-pin beingprovidedwith a steam passage-way, whereby said steam is conducted intosaid hollow head, and means whereby said valve is automatically closed,substantially as described.

In testimony whereof I affix my signature I 5 in presence of twowitnesses.

EREDERIO A. I-IUE'TT. Witnesses:

J. F. ROUSTON, FRANK AVERY.

